12820041

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1$

素因数の和:190

約数の個数: 48

約数和(自身を含む): 21548800

約数和(自身を除く): 8728759

約数列:

[1, 3, 9, 13, 19, 39, 57, 73, 79, 117, 171, 219, 237, 247, 657, 711, 741, 949, 1027, 1387, 1501, 2223, 2847, 3081, 4161, 4503, 5767, 8541, 9243, 12483, 13509, 17301, 18031, 19513, 51903, 54093, 58539, 74971, 109573, 162279, 175617, 224913, 328719, 674739, 986157, 1424449, 4273347, 12820041]

約数ペア:

[(1, 12820041), (3, 4273347), (9, 1424449), (13, 986157), (19, 674739), (39, 328719), (57, 224913), (73, 175617), (79, 162279), (117, 109573), (171, 74971), (219, 58539), (237, 54093), (247, 51903), (657, 19513), (711, 18031), (741, 17301), (949, 13509), (1027, 12483), (1387, 9243), (1501, 8541), (2223, 5767), (2847, 4503), (3081, 4161)]